PyAMS (Python for Analog and Mixed Signals) CAD approach
A tool for low-power CMOS voltage reference designs
This software is a tool for designing electronic circuits using LaTeX.
Solves symbolic electrical AC circuit equations
Smart GUI/Commandline tools to create IP-XACT( 2009/2014) files
VHDL Verification and Simulation Tool
IEEE LRM compliant System Verilog Parser in Java with Python, Tcl API
Import your PCB boards to FreeCAD
Eclipse-based IDE for design verification tasks
Python Gerber to G-code converter
Convert DXF drawings of circuit boards to gEDA-PCB files.
TCAD Device Simulator
A graphical Finite State Machine (FSM) designer.
RS485 library for C# and Python